I used to use a r3850+gf9600 then r5750+gf9600 and now I am using a gfGTX460+gf9600 with my AMD mobo&CPU. Works fine.
*IF* you are using an ATI card as your primary, read below.Hybrid PhysX mod v1.03 / v1.04ff

*IF* you are using an nvidia card as your primary, you do not have to do anything but set the card you want as the physx card in the nvidia control panel.

imho.....I cannot see the 8800 GT provided anything but a headache trying to use it to carry PhysX in game.....for games such as Metro33 or Mafia II forgetaboutit.......even Batman AA recommends a GTX 260 for dedicated PhysX.......go for it, don't expect your PhysX capable games suddenly come to life with that GPU.

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Introducing me n my OCD to Watercooling, is like taking an Alcoholic to an "all you can drink" Beach Bar in Mexico

for games such as Metro33 or Mafia II forgetaboutit.......even Batman AA recommends a GTX 260 for dedicated PhysX.......go for it, don't expect your PhysX capable games suddenly come to life with that GPU.

I just ran through the Mafia II demo (yeahyeah, demo, not real thing, different, w/e) and with my 9600GSO doing PhysX with the PhysX set to high in the game(and a GTX460 as primary card) I was seeing during the active scenes low 60% to mid 70% usage on the 9600GSO.
When running the benchmark the utilization being reported was lower at around low 50s to mid 60s.

Now, I do not know how an 8800GT compares to this 9600GSO for PhysX specifically, but I would be tempted to say that in the case of Mafia II unless the full version is capable of an even higher setting that an 8800GT or 9600GSO would do PhysX just fine. For future games you would certainly want to get a better card. I have of course not tried out metro 2033 or batman aa yet. Perhaps tomorrow.

Last edited by MacJunky; December 9, 2010 at 12:37 AM.
Reason: typo >_>